Home / 4,315.16-5,956.38-2,990.60

Finding the Fourth Proportional to 4,315.16, 5,956.38 and 2,990.60

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Solution

The fourth proportional to 4,315.16, 5,956.38 and 2,990.60 is: 4,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.16 : 5,956.38 = 2,990.60 : x
  2. Step 2: Convert to fraction form
    4,315.16/5,956.38 = 2,990.60/x
  3. Step 3: Cross multiply
    4,315.16x = 5,956.38 × 2,990.60
  4. Step 4: Simplify right side
    4,315.16x = 17,813,164.92
  5. Step 5: Solve for x
    x = 17,813,164.92/4,315.16
  6. Step 6: Final answer
    x = 4,128.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.